. >>> in israel, birds of a feather really do flock together. thousands of starlings in the sky create quite a phenomenon for onlookers on the ground. it looks really cool. doesn't look real. the birds fly in tight uniform formation while hunting to follow their food and avoid predators. >> you know the movie "the mummy" -- >> yeah, exactly, like end of the world sort of stuff. they're looking for predators and finding strength in numbers, clearly. while the flocks are common in israel, starlings in these numbers have not been seen in over 20 years. >>> some may seem out of reach but some can't wait to grab a paddle. nearly 200 kayakers came together to race their boats down snowy slopes. competitors maneuvered their kayaks around twists and turns of a specially made course. some jumps as well. some slid off the track on their way down. if they didn't land in fresh powder they raced across a watery finish line. >>> don't forget the warm-up. around 5,000 competitors laced up for one of the world's most challenging races. the tough guy race dares